I'm using NGUI 3.6.0 in Unity 4.3.4f1, free version
Whenever I set an anchor, the object jumps tens of thousands of units away. This happens simply by going from Anchors Type->None to Type->Unified. On a UISprite at (0,0,0), it jumped to (45079.89, 23000.5, 0). The scene is also completely empty except for NGUI objects.
For some reason, the scale on UIRoot seems to be set to 0.004347826 in each axis, which I assume is part of the cause; however, it won't let me change the scale value. The UIRoot was auto-created when I dragged in objects from the Prefab Toolbar.